b.(b)Nonimmigrant aliens importing or bringing firearms or ammunition into the United States must provide the United States Customs Service with applicable documentation (e.g., a hunting license or permit lawfully issued in the United States; waiver) establishing the nonimmigrant alien falls within an exception to or has obtained a waiver from the nonimmigrant alien prohibition before the firearm or ammunition may be imported. This provision applies in all cases, whether or not a Form 6 is needed to bring the firearms or ammunition into the United States.